I am not sure if any of these have been mentioned, except of course Sailing Alone Around the World by Slocum, which is one of my all time favorites.
Lone Voyager by Joseph Garland, the story of Howard Blackburn, the Gloucester fisherman who rowed back to land in the middle of winter, losing fingers and toes to frostbite, and who later single-handed to Europe several times. A story of incredible hardship and toughness, they don't make them like Howard any more.
Venturesome Voyages by J.C. Voss, an early circumnavigator in a decked Indian dug-out canoe, early proponent of sea
anchors.
Salt Water Poems and Ballads, John Masefield: "I must down to the seas again, to the lonely sea and the sky, And all I ask is a tall ship and a star to steer her by..." Sea-Fever and more poems. Sea-Fever is probably the best and best known of these classic poems.
Amaretto, Joe Upton, about sardine fishing in Maine, he wrote another good book about fishing in Alaska. Well written.
Clean, Sweet Wind, Douglas Pyle, about the last of the wooden boat-builders in the Caribbean. Pyle sailed to the various islands to research the story. Also well written.
Most of these are probably out of print, but Amazon or one of the used nautical book stores will help.